Our Changing World for Thursday 9 July 2015

9:46 PM.In his New Plymouth workshop, Trevor Bremner designs and produces the sshhmute, a practice mute for brass instruments Read more Audio

9:34 PM.Susann Beier is using MRI and computational models to analyse flow of blood like fluid in 3D-printed replicas of coronary arteries with the aim of improving stent design Read more Audio

9:20 PM.Long-nosed spookfish and other chimaeras are among a suite of weird, little known deep sea sharks that sport spiky sex organs on their head, enormous noses, fierce spines and long tails Read more Audio, Gallery

9:06 PM.Electronic tags used to measure the survival of spinetail devil rays released after being caught by tuna fishing boats have revealed long journeys to the tropics and deep dives Read more Audio